public static byte[] Get(IPEndPoint endpoint,
HttpArgs args)
{
return InternalSocketHttp(endpoint, args, HttpMethod.GET);
}
public static byte[] Get(IPEndPoint endpoint, HttpArgs args, X509CertificateCollection certificates)
{
return InternalSslSocketHttp(endpoint, certificates, args, HttpMethod.GET);
}
/// <summary>
/// 解析 Ssl Response
/// </summary>
/// <param name="endpoint"></param>
/// <param name="ssl"></param>
/// <param name="args"></param>
/// <param name="certificates"></param>
/// <returns></returns>
private static byte[] ParseSslResponse(IPEndPoint endpoint,
SslStream ssl,
HttpArgs args,
X509CertificateCollection certificates)
{
//尝试10秒时间读取协议头
CancellationTokenSource source = new CancellationTokenSource();
Task<string> myTask = Task.Factory.StartNew<string>(
new Func<object, string>(ReadSslHeaderProcess),
ssl,
source.Token);
if (myTask.Wait(10000))
{
string header = myTask.Result;
if (header.StartsWith("HTTP/1.1 302"))
{
int start = header
.ToUpper().IndexOf("LOCATION");
if (start > 0)
{
string temp = header.Substring(start, header.Length - start);
string[] sArry = Regex.Split(temp, "\r\n");
args.Url = sArry[0].Remove(0, 10);
return Get(endpoint, args, certificates); //注意：302协议需要重定向
}
}
else if (header.StartsWith("HTTP/1.1 200")) //继续读取内容
{
int start = header
.ToUpper().IndexOf("CONTENT-LENGTH");
int content_length = 0;
if (start > 0)
{
string temp = header.Substring(start, header.Length - start);
string[] sArry = Regex.Split(temp, "\r\n");
content_length = Convert.ToInt32(sArry[0].Split(':')[1]);
if (content_length > 0)
{
byte[] bytes = new byte[content_length];
if (ssl.Read(bytes, 0, bytes.Length) > 0)
{
return bytes;
}
}
}
else
{
//不存在Content-Length协议头
return ParseSslResponse(ssl);
}
}
else
{
return Encoding.Default.GetBytes(header);
}
}
else
{
source.Cancel(); //超时的话，别忘记取消任务哦
}
return null;
}
static byte[] ParseHttpArgs(HttpMethod method, HttpArgs args)
{
StringBuilder bulider = new StringBuilder();
if (method.Equals(HttpMethod.POST))
{
bulider.AppendLine(string.Format("POST {0} HTTP/1.1",
args.Url));
bulider.AppendLine("Content-Type: application/x-www-form-urlencoded");
}
else
{
bulider.AppendLine(string.Format("GET {0} HTTP/1.1",
args.Url));
}
bulider.AppendLine(string.Format("Host: {0}",
args.Host));
bulider.AppendLine("User-Agent: Mozilla/5.0 (Windows NT 6.1; IE 9.0)");
if (!string.IsNullOrEmpty(args.Referer))
bulider.AppendLine(string.Format("Referer: {0}",
args.Referer));
bulider.AppendLine("Connection: keep-alive");
bulider.AppendLine(string.Format("Accept: {0}",
args.Accept));
bulider.AppendLine(string.Format("Cookie: {0}",
args.Cookie));
if (method.Equals(HttpMethod.POST))
{
bulider.AppendLine(string.Format("Content-Length: {0}\r\n",
Encoding.Default.GetBytes(args.Body).Length));
bulider.Append(args.Body);
}
else
{
bulider.Append("\r\n");
}
string header = bulider.ToString();
return Encoding.Default.GetBytes(header);
}
static byte[] InternalSslSocketHttp(IPEndPoint endpoint,
X509CertificateCollection certificates,
HttpArgs args,
HttpMethod method)
{
TcpClient tcp = new TcpClient();
try
{
tcp.Connect(endpoint);
if (tcp.Connected)
{
using (SslStream ssl = new SslStream(tcp.GetStream(),
false,
new RemoteCertificateValidationCallback(ValidateServerCertificate),
null))
{
ssl.AuthenticateAsClient("ServerName",
certificates,
SslProtocols.Tls,
false);
if (ssl.IsAuthenticated)
{
byte[] buff = ParseHttpArgs(method, args); //生成协议包
ssl.Write(buff);
ssl.Flush();
return ParseSslResponse(endpoint, ssl, args, certificates);
}
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
return null;
}
static byte[] InternalSocketHttp(IPEndPoint endpoint,
HttpArgs args,
HttpMethod method)
{
using (Socket sK = new Socket(AddressFamily.InterNetwork,
SocketType.Stream,
ProtocolType.Tcp))
{
try
{
sK.Connect(endpoint);
if (sK.Connected)
{
byte[] buff = ParseHttpArgs(method, args);
if (sK.Send(buff) > 0)
{
return ParseResponse(endpoint, sK, args);
}
}
}
catch (Exception ex)
{
Console.WriteLine(ex.Message);
}
}
return null;
}
